.collapse-panel {
}
.collapse-panel-title {
  cursor: pointer;
  padding: 10px;
  /* background: rgb(235, 237, 240); */
  border-radius: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.collapse-panel-title:hover {
  background-color: aliceblue;
}
.collapse-panel-icon {
  display: inline-block;
  width: 20px; /* 根据需要调整宽度 */
  height: 20px; /* 根据需要调整高度 */
  text-align: center;
  transition: transform 0.3s ease; /* 添加过渡效果 */
}

.collapse-panel-icon::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 10px solid black; /* 向下的箭头 */
  transition: transform 0.3s ease; /* 添加过渡效果 */
  border-radius: 5px;
}

.collapse-panel-icon.open::before {
  transform: rotate(180deg); /* 向上箭头 */
}
.collapse-panel-content {
  border-radius: 5px;
}
